EP 3548580 B1 20201223 - INVERT EMULSION DRILLING FLUIDS WITH FATTY ACID AND FATTY DIOL RHEOLOGY MODIFIERS
Title (en)
INVERT EMULSION DRILLING FLUIDS WITH FATTY ACID AND FATTY DIOL RHEOLOGY MODIFIERS
Title (de)
INVERTEMULSIONSBOHRFLÜSSIGKEITEN MIT FETTSÄURE- UND FETTSÄURE-DIOL-RHEOLOGIEMODIFIKATOREN
Title (fr)
FLUIDES DE FORAGE À ÉMULSION INVERSE COMPRENANT DES MODIFICATEURS DE RHÉOLOGIE ACIDES GRAS ET DIOLS GRAS
Publication
Application
Priority
- US 201662428376 P 20161130
- US 2017063849 W 20171130
Abstract (en)
[origin: US2018148626A1] Provided here are various invert emulsion drilling fluid compositions. The invert emulsion fluid is a water in oil emulsion, which can include an invert emulsifier to stabilize the water in oil emulsion, a 16 to 18 carbon carboxylic acid, a 36 carbon fatty dimer diol, a polymeric filter control agent, and an inorganic mineral including one or more of lime, calcium chloride, and barite. The invert emulsion drilling fluids can be formulated to be substantially free of clay.
IPC 8 full level
C09K 8/36 (2006.01)
CPC (source: EP US)
C09K 8/032 (2013.01 - US); C09K 8/035 (2013.01 - US); C09K 8/36 (2013.01 - EP US); E21B 43/16 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 10526521 B2 20200107; US 2018148626 A1 20180531; CA 3043973 A1 20180607; CN 110234730 A 20190913; CN 110234730 B 20211112; EP 3548580 A2 20191009; EP 3548580 B1 20201223; US 10767097 B2 20200908; US 2020087563 A1 20200319; WO 2018102495 A2 20180607; WO 2018102495 A3 20190725
DOCDB simple family (application)
US 201715827575 A 20171130; CA 3043973 A 20171130; CN 201780073843 A 20171130; EP 17876895 A 20171130; US 2017063849 W 20171130; US 201916692733 A 20191122